05000293/LER-1983-022-03, /03L-0:on 830413,overload on Valve Motor 1301-17 Resulted in Loss of High Pressure Core Cooling Backup Capability.Caused by Oxidation in Motor End Bell & Motor Brushes,Due to Humidity Caused by Leaking Valve Packing

/03L-0:on 830413,overload on Valve Motor 1301-17 Resulted in Loss of High Pressure Core Cooling Backup Capability.Caused by Oxidation in Motor End Bell & Motor Brushes,Due to Humidity Caused by Leaking Valve Packing

ML20023D018
Person / Time
Site:	Pilgrim
Issue date:	05/04/1983
From:	Crowder J BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20023D016	List: 05000293/LER-1983-022, Forwards LER 83-022/03L-0 05000293/LER-1983-022-03, /03L-0:on 830413,overload on Valve Motor 1301-17 Resulted in Loss of High Pressure Core Cooling Backup Capability.Caused by Oxidation in Motor End Bell & Motor Brushes,Due to Humidity Caused by Leaking Valve Packing
References
LER-83-022-03L, LER-83-22-3L, NUDOCS 8305190029
Download: ML20023D018 (1)

LER-1983-022, /03L-0:on 830413,overload on Valve Motor 1301-17 Resulted in Loss of High Pressure Core Cooling Backup Capability.Caused by Oxidation in Motor End Bell & Motor Brushes,Due to Humidity Caused by Leaking Valve Packing

Event date:
Report date:
2931983022R03 - NRC Website

text

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R EPORT D ATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 12 l l On 4/13/83, while performing the RCIC valve timina (in anticipation of making l

l 0 l3 l l HPCI inop. for maintenance) the 1301-17 valve motor indicated an overload. thus l

lo l4 l l creating a loss of high pressure core cooling backup capability. RCICwasmadein]

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l l o l 7 l l Section 4.5.D.2. This event created no threat to the public health and safety.

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lil'l [ oxidation in motor end bell and on motor brushes. Motor was repaired by G.E.,

l l1l2ll tested,run reinstalled. The motor windinas were lacauered and heat treated and l l 1 l 37 l the bearines were replaced before reinstallation. The valve operator was over-l I114 l l hauled and the valve was repacked. No future corrective action is required.

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